Email notification is sent from KernelCare: /usr/bin/kcarectl --auto-update --gradual-rollout=auto Unknown Kernel

Kuzma Ivanov

Updated February 13, 2023 09:13

Plesk for Linux kb: technical ABT: Group A

Applicable to:

Plesk for Linux

Symptoms

Plesk Administrator receives one of the following messages from the KernelCare extension:

PLESK_INFO: Cron <root@localhost> /usr/bin/kcarectl --auto-update --gradual-rollout=auto
Unknown Kernel (Ubuntu 4.13.0-1011-gcp)

PLESK_INFO: Cron <root@localhost> /usr/bin/kcarectl --auto-update --gradual-rollout=auto
<urlopen error Request for `https://patches.kernelcare.com/98e7651e467b5b8372fcddc27a87b7507974a113/latest.v2? ... ` failed: <urlopen error [Errno -3] Temporary failure in name resolution

The KernelCare checker reports that the version of kernel is not supported:

# curl -s https://raw.githubusercontent.com/iseletsk/kernelchecker/master/py/kc-compat.py|python
UNSUPPORTED
The execution of the command below fails with the next error:

# /usr/bin/kcarectl --auto-update
IOError: [Errno 2] No such file or directory: '/proc/modules'

Cause

KernelCare does not support the current kernel version.

Resolution

The upgrade of the kernel is required to be done manually by means of operating system tools.